Terahertz wavefront control by graphene metasurface

Takumi Yatooshi; Atsushi Ishikawa; Kenji Tsuruta

doi:10.1557/opl.2015.730

Terahertz wavefront control by graphene metasurface

Takumi Yatooshi, Atsushi Ishikawa, Kenji Tsuruta

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We propose and numerically investigate a tunable metasurface made of an array of graphene ribbons to dynamically control terahertz (THz) wavefront. The metasurface consists of graphene micro ribbons on a silver mirror with a SiO₂ gap layer. The graphene ribbons are designed to exhibit localized plasmon resonances depending on their Fermi levels to introduce abrupt phase shifts along the metasurface. With interference of the Fabry-Perot resonances in the SiO₂ layer, phase shift through the system is largely accumulated, covering up to 2jt range for full control of the THz wavefront. Numerical simulations prove that wide-angle reflected THz beam steering from -53° to +53° with a high reflection efficiency as high as 60% is achieved at 5 THz while the propagation direction of THz beam could be switched within 0.6 ps.

Original language	English
Title of host publication	Light-Matter Phenomena - From Atoms to Complex Structures
Editors	Dimitry Budker, Vivian Ferry, Joshua Caldwell, Carlos Meriles, Doekele Stavenga, Jill Millstone, Milos Nesladek, Carlos Silva, Ming Lee Tang, Cordt Zollfrank, Michael Bartl, Silke Christiansen, Noel Giebink, Stephane Kena-Cohen, Fedor Jelezko, Gennady Shvets, Natalie Stingelin, Joel Yang, Stephane Larouche
Publisher	Materials Research Society
Pages	37-42
Number of pages	6
ISBN (Electronic)	9781510826427
DOIs	https://doi.org/10.1557/opl.2015.730
Publication status	Published - 2015
Event	2015 MRS Spring Meeting - San Francisco, United States Duration: Apr 6 2015 → Apr 10 2015

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1788
ISSN (Print)	0272-9172

Conference

Conference	2015 MRS Spring Meeting
Country	United States
City	San Francisco
Period	4/6/15 → 4/10/15

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1557/opl.2015.730

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Yatooshi, T., Ishikawa, A., & Tsuruta, K. (2015). Terahertz wavefront control by graphene metasurface. In D. Budker, V. Ferry, J. Caldwell, C. Meriles, D. Stavenga, J. Millstone, M. Nesladek, C. Silva, M. L. Tang, C. Zollfrank, M. Bartl, S. Christiansen, N. Giebink, S. Kena-Cohen, F. Jelezko, G. Shvets, N. Stingelin, J. Yang, & S. Larouche (Eds.), Light-Matter Phenomena - From Atoms to Complex Structures (pp. 37-42). (Materials Research Society Symposium Proceedings; Vol. 1788). Materials Research Society. https://doi.org/10.1557/opl.2015.730

Terahertz wavefront control by graphene metasurface. / Yatooshi, Takumi; Ishikawa, Atsushi; Tsuruta, Kenji.

Light-Matter Phenomena - From Atoms to Complex Structures. ed. / Dimitry Budker; Vivian Ferry; Joshua Caldwell; Carlos Meriles; Doekele Stavenga; Jill Millstone; Milos Nesladek; Carlos Silva; Ming Lee Tang; Cordt Zollfrank; Michael Bartl; Silke Christiansen; Noel Giebink; Stephane Kena-Cohen; Fedor Jelezko; Gennady Shvets; Natalie Stingelin; Joel Yang; Stephane Larouche. Materials Research Society, 2015. p. 37-42 (Materials Research Society Symposium Proceedings; Vol. 1788).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Yatooshi, T, Ishikawa, A & Tsuruta, K 2015, Terahertz wavefront control by graphene metasurface. in D Budker, V Ferry, J Caldwell, C Meriles, D Stavenga, J Millstone, M Nesladek, C Silva, ML Tang, C Zollfrank, M Bartl, S Christiansen, N Giebink, S Kena-Cohen, F Jelezko, G Shvets, N Stingelin, J Yang & S Larouche (eds), Light-Matter Phenomena - From Atoms to Complex Structures. Materials Research Society Symposium Proceedings, vol. 1788, Materials Research Society, pp. 37-42, 2015 MRS Spring Meeting, San Francisco, United States, 4/6/15. https://doi.org/10.1557/opl.2015.730

Yatooshi T, Ishikawa A, Tsuruta K. Terahertz wavefront control by graphene metasurface. In Budker D, Ferry V, Caldwell J, Meriles C, Stavenga D, Millstone J, Nesladek M, Silva C, Tang ML, Zollfrank C, Bartl M, Christiansen S, Giebink N, Kena-Cohen S, Jelezko F, Shvets G, Stingelin N, Yang J, Larouche S, editors, Light-Matter Phenomena - From Atoms to Complex Structures. Materials Research Society. 2015. p. 37-42. (Materials Research Society Symposium Proceedings). https://doi.org/10.1557/opl.2015.730

Yatooshi, Takumi ; Ishikawa, Atsushi ; Tsuruta, Kenji. / Terahertz wavefront control by graphene metasurface. Light-Matter Phenomena - From Atoms to Complex Structures. editor / Dimitry Budker ; Vivian Ferry ; Joshua Caldwell ; Carlos Meriles ; Doekele Stavenga ; Jill Millstone ; Milos Nesladek ; Carlos Silva ; Ming Lee Tang ; Cordt Zollfrank ; Michael Bartl ; Silke Christiansen ; Noel Giebink ; Stephane Kena-Cohen ; Fedor Jelezko ; Gennady Shvets ; Natalie Stingelin ; Joel Yang ; Stephane Larouche. Materials Research Society, 2015. pp. 37-42 (Materials Research Society Symposium Proceedings).

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abstract = "We propose and numerically investigate a tunable metasurface made of an array of graphene ribbons to dynamically control terahertz (THz) wavefront. The metasurface consists of graphene micro ribbons on a silver mirror with a SiO2 gap layer. The graphene ribbons are designed to exhibit localized plasmon resonances depending on their Fermi levels to introduce abrupt phase shifts along the metasurface. With interference of the Fabry-Perot resonances in the SiO2 layer, phase shift through the system is largely accumulated, covering up to 2jt range for full control of the THz wavefront. Numerical simulations prove that wide-angle reflected THz beam steering from -53° to +53° with a high reflection efficiency as high as 60% is achieved at 5 THz while the propagation direction of THz beam could be switched within 0.6 ps.",

author = "Takumi Yatooshi and Atsushi Ishikawa and Kenji Tsuruta",

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AB - We propose and numerically investigate a tunable metasurface made of an array of graphene ribbons to dynamically control terahertz (THz) wavefront. The metasurface consists of graphene micro ribbons on a silver mirror with a SiO2 gap layer. The graphene ribbons are designed to exhibit localized plasmon resonances depending on their Fermi levels to introduce abrupt phase shifts along the metasurface. With interference of the Fabry-Perot resonances in the SiO2 layer, phase shift through the system is largely accumulated, covering up to 2jt range for full control of the THz wavefront. Numerical simulations prove that wide-angle reflected THz beam steering from -53° to +53° with a high reflection efficiency as high as 60% is achieved at 5 THz while the propagation direction of THz beam could be switched within 0.6 ps.

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